Half to frank spaulding



(No Model.)

J. J. PBLTON. TRUSS.

N0. 439,252. Patented Ont. 28, 1890.

55555. l \/E Lu Josea 5 J: .PDZaCL R JOSIAH J. PELTON, OF MILES GROVE,

PATENT OFFICE.

PENNSYLVANIA, ASSIGNOR OF ONE- HALF TO FRANK SPAULDING, OF SAME PLACE.

TRUSHS.

SPECIFICATION forming part of Letters Patent No. 439,252, dated October 28, 1890.

Application filed July 23, 1890.

To aZZ whom it may concern.-

Be it known that I, JOSIAH J. PELTON, a citizen of the United States, residing at Miles Grove, in the county of Erie and State of Pennsylvania, have invented certain new and useful Improvements in Trusses; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and t0 the letters of reference marked thereon, forming part of this specification.

My invention consists in the improvements in trusses hereinafter set forth and explained, and illustrated in the accompanying drawin gs, in which-- Figure 1 is a perspective view of my improved truss without the back-strap. Fig. 2

.is a longitudinal section through the central part thereof. Fig. 3 is a detail view of one of the pads and its supporting-arm.

Like letters refer to like parts in. all of the figures.

This invention is designed as an improvement on my invention in trusses set forth in Letters Patent No. 409,299, dated August 20, 1889; and it consists, principally, in making the main spring of the truss in two sections adjustable on each other; also, in making the pad-arms longitudinally adjustable upon the main spring of the truss and with relation to each other; -also, in securing the pads upon the arms so that they can be rotated and be adjusted thereon, as desired.

Other features of my invention will appear hereinafter in the specification and claims.

In the construction shown of my improved truss, A A are the two sections of the mainspring portion of the truss, preferably made of sprin -steel, the inner ends of which overlap each other. These overlapping sections of the spring A A are each provided with the elongated slot at, through which a clamping-bolt B passes, as hereinafter set forth. The outer ends of the sections A A are each provided with a buckle O, in which is secured an ordinary strap (not shown) adapted to pass around the back of the person wearing the truss.

Overlapping the joint formed'by the inner Serial No. 359,685. (No model.)

ends of the sections A A of the truss is an auxiliary leaf-spring D, having a central hole therein adapted to pass over the clamping bolt B. On the top of the leaf-spring D are placed the inner ends of the pad-arms E E, each of which is provided with an elongated slot 6, through which slots 6 the clamping-bolt 13 also passes, and surrounding the joints formed by the inner ends of the main sections A A and of the pad-arms E E is arectangular sleeve H, of thin metal, having central holes h therein, through which the clampingbolt B also passes, so that when the nut b on the clamping-bolt B is screwed up all the parts are firmly clamped together and heldin place.

t will be observed. that the construction hereinbefore described permits of the adj ustment of the main-spring portion A A of the truss lengthwise to suit the size of the wearer, and the slots e in the inner ends of the padarms E E permit the adjustment endwise thereof, as may be desired, while by means of the extra leaf-spring D the stiffness of the main-spring sections A A of the truss may be varied to suit the wearer by using a weaker or stiffer leaf-spring, as may be desired.

The pads F F I make, preferably, oval in shape; but they may be made round, if desired. To the outer ends of the pad-arms E E, I hinge circular plates f f which fit into circular recesses d in the backs of the pads F F. The bottoms of the recesses d are made convex-shaped, so that the centers of the plates ff contact therewith, leaving the edges thereof free. These plates f f are secured in place in the recesses d by means of annular rings-or washers G,which cover the outer edges of the plates f f, and are secured to he backs of the pads F F by means of screws g, oy means of which screws the washers G can be tightencd down upon the plates f f so as to press them so firmly upon the convex bottoms of.

the recesses cl as to prevent the pads F and F from turning thereon.

The operation of my improved truss is so obvious to those skilled in the art to which it appertains that further description thereof is deemed unnecessary. Therefore,

Having fully described my invention, what I IOO claim as new, and desire to secure by Letters Patent of the United States, is

1. The combination, in a truss, of an inwardly-curved spring constructed in two sections longitudinally adjustable upon each other, with two pad-arms the inner ends of which are longitudinally adjustable upon the joint in the curved spring and upon each other, and a rectangular sleeve inclosing said joints, and a clamping-bolt for securing said parts together, substantially as and for the purpose set forth.

2. The combination, in a truss, of an inwardly-curved main truss-spring constructed in two sections A A, adjustable upon each other, and a leaf-spring D, overlapping the joint between the ends of the sections A A, with pad-arms E E, having the inner ends thereof also overlapping the joint between the ends of the sectionsAA, a rectangular sleeve inclosing the joint between the ends of the sections A A, the central portion of the leafspring D, and the joint between the inner ends of the pad-arms E E, a clamping-bolt passing through the said sleeve and the parts contained therein, and adjustable pads F and F on the outer ends of the pad-arms E and E, substantially as and for the purpose set forth.

3. The combination, in an adjustable trusspad, of a circular plate f, hinged to the outer end of the pad-arm E and fitting into a circular recess 61 in the back of a pad F, with an annular ring or washer G, adapted to be secured to the back of the pad F, so as to cover the periphery of the circular plate f and permit itto rotate in said recess d or be clamped down so firmly upon said plate as to prevent its rotating in said recess d, substantially as and for the purpose set forth.

In testimony whereof I atfixmysignature in presence of two witnesses.

JOSIAH J. PELTON.

Witnesses:

CALVIN J. HINDS, CHAS. SMITH. 

